Poa nemoralis L.,Sp. Pl. 1: 67 1753.

Soreng, Robert J. & Peterson, Paul M., 2012, Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii, PhytoKeys 15, pp. 1-104 : 69

Poa nemoralis L.,Sp. Pl. 1: 67 1753.

Discussion.

This species was reported by Dávila Aranda et al. (2006) from Coahuila, Mexico, and has not been verified by us.The basis of this report is unknown to Jesus Valdes-Reyna (pers. comm. 2012, a coauthor of the Dávila Aranda et al. 2006 account, who is working on a revision of grasses of Coahuila). We guess that this reference resulted from confusion with the name Agrostis alba L., the type of which is Poa nemoralis . The accepted name for material traditionally treated as Agrostis alba (sensu auct.) is Agrostis gigantea Roth. This is clearly the case for a separate report for Durango: See A.Benitez 1725 (CIIDIR) in GBIF (http://data.gbif.org/occurrences/370590415/), mapped for Durango as Poa nemoralis , but cited under Agrostis alba L. by Herrera-Arrieta (2001). Poa nemoralis , is cool-temperate woodland species of Poa sect. Stenopoa Dumort., native to Eurasia and introduced in Canada, USA (mostly in the northeast), sporadically in Patagonian South America, and in Guatemala ( M.E.deKoninck s.n., ISC-212372!).